इति श्रीमहाभारते अनुशासनपर्वणि दानधर्मपर्वणि सावित्रीव्रतोपाख्याने पञ्चाशदधिकशततमो<ध्याय:
iti śrīmahābhārate anuśāsanaparvaṇi dānadharmaparvaṇi sāvitrīvratopākhyāne pañcāśad-adhika-śatatamo 'dhyāyaḥ
Thus, in the Śrī Mahābhārata, within the Anuśāsana Parva—specifically in the section on the dharma of gifts (dāna-dharma)—in the episode concerning the Sāvitrī vow, ends the one-hundred-and-fiftieth chapter. This is a colophon marking the close of a unit of teaching, situating the narrative within the ethical framework of charitable duty and vow-based discipline.
भीष्म उवाच
The line is a colophon rather than a doctrinal verse: it frames the teaching within dāna-dharma (the ethics of giving) and the Sāvitrī-vrata episode, emphasizing that moral instruction in the Mahābhārata is organized through themed sections and illustrative narratives.
The text is marking the end of a chapter/unit: it identifies the larger book (Anuśāsana Parva), the thematic subsection (dāna-dharma), and the specific embedded story (Sāvitrī-vrata upākhyāna), concluding the 150th chapter.